JP6230065B2 - Input device - Google Patents

Description

  The present invention relates to an input device for operating an electronic device, and more particularly to an input device for a portable electronic device.

  Conventionally, portable electronic devices such as portable audio devices that can be taken out and used outdoors have been used by many people. In recent years, small input devices excellent in operability and fashion have been proposed, such as a neck strap controller and a strap controller formed separately from a portable electronic device main body.

  Such a small input device is disclosed in Patent Document 1. FIG. 15 shows an input device (strip-shaped strap controller) for a portable audio device disclosed in Patent Document 1. In FIG.

  A strip-shaped strap controller (input device) 900 shown in FIG. 15 includes a connecting portion 942, a strip-shaped strap 941b having one short side supported on one side surface of the connecting portion 942, and a strap 941b. A connecting cord 943 connected to the side surface opposite to the side surface of the connecting portion 942 is provided. The connection cord 943 is connected to an electronic device such as a portable audio device. On the strap 941b, five input units 944 to 948 are arranged, and functions such as music playback / stop, volume control, and tracking (tune search) are assigned to each input unit.

  For example, a membrane switch can be formed as each of the input units 944 to 948 in the strip-shaped strap controller (input device) 900 shown in FIG. Each membrane switch is formed with two electrode parts (contacts) facing each other on two substrate parts made of a resin material such as PET, and each electrode part (contacts) is picked up by the fingers of the outer surface of the two substrate parts. ). With this operation, the input units 944 to 948 can be switched.

  In addition, electrostatic sensors can be formed as the input units 944 to 948 in the strip-shaped strap controller (input device) 900 shown in FIG. In that case, for example, on a substrate made of a resin material such as PET, two substantially comb-like electrode parts in a plan view are formed, and the comb-teeth parts of the two electrode parts are alternately bitten, so that it is narrow. By forming capacitors with intervals, each electrostatic sensor can be configured. The electrostatic sensor can perform switching operations of the input units 944 to 948 by increasing the capacitance between the electrode units by bringing a finger close to the outer surface of the substrate unit.

JP 2004-215214 A

  However, the input device 900 as disclosed in Patent Document 1 has the following problems.

  When a membrane switch is formed as the input units 944 to 948, each of the membrane switches may twist the strip-shaped strap 941b when an input operation is performed. Sometimes turned on. As a result, a malfunction may occur such as the volume of the connected portable audio device suddenly increases unintentionally or music is suddenly fast-forwarded.

  In addition, even when an electrostatic sensor is formed as the input units 944 to 948, a part of the human body accidentally touches the input units 944 to 948, or a liquid such as sweat contacts the electrostatic sensor. In some cases, malfunctions may occur.

  The present invention has been made in view of such a state of the art, and an object thereof is to provide an input device capable of preventing malfunction.

  In order to solve this problem, an input device according to the present invention includes a first sheet provided with a first contact on one surface and a second sheet provided with a second contact on one surface, A membrane switch arranged so that one contact and the second contact face each other with a gap therebetween, and a first base material, and a first electrode portion is formed on one surface of the first base material A first electrostatic sensor having a second base material, and a second electrostatic sensor having a second electrode portion formed on one surface of the second base material, and an external electronic device The first electrostatic sensor and the second electrostatic sensor, wherein the first electrode portion faces the other surface of the first sheet, and the second electrode portion It is arrange | positioned so that the other surface of the said 2nd sheet may be opposed, The said 1st contact, the said 2nd contact, and the said 1 and the electrode portion and the second electrode portions, each of at least a portion each other are arranged so as to overlap all in plan view, has the feature that.

  The input device configured as described above includes an electrostatic sensor on each of the one surface side and the other surface side of the membrane switch, and the two contact points of the membrane switch and the electrode portions of the two electrostatic sensors are arranged to overlap each other. can do. As a result, the membrane switch and the two electrostatic sensors can be simultaneously turned on by the pressing operation from the outer surfaces of the two electrostatic sensors. By using this configuration, it is possible to prevent input except when the membrane switch and the two electrostatic sensors are simultaneously turned on, and as a result, malfunction can be prevented.

  Further, in the above configuration, a pressing member is formed in a part between the first electrode part and the first contact and a part between the second electrode part and the second contact, respectively. And an elastic layer is formed between the first electrode portion and the first sheet and between the second electrode portion and the second sheet in a region where the pressing member is not provided. Have.

  In the input device configured as described above, the pressing operation can be smoothly performed by the pressing member, and the distance between the two electrostatic sensors can be maintained by the elastic layer, so that the malfunction can be further reduced. it can.

  In the above configuration, the first sheet having the first contact on one surface and the second sheet having the second contact on one surface, the first contact, the second contact, Are arranged so as to face each other with a gap therebetween, a first electrostatic sensor having a first electrode portion formed on the other surface of the first sheet, and the other surface of the second sheet A second electrostatic sensor having a second electrode portion formed thereon, and an input device connectable to an external electronic device, wherein the first contact point, the second contact point, and the first electrode portion The second electrode portion is characterized in that at least a part of each of the second electrode portions is arranged so as to overlap each other in plan view.

  In the input device configured as described above, the membrane switch, the first electrostatic sensor, and the second electrostatic sensor are arranged on the front side and the back side of one sheet, so that the thickness of the input device itself is reduced. be able to. Therefore, it is possible to provide an input device that is excellent in operability and fashionability.

  Further, in the above configuration, the second contact is connected to the ground of the electronic device, and the first electrode portion and the second electrode portion are the outer shape of the first electrode portion and the second electrode portion. Both of the outer shapes are characterized in that they are arranged so as to fit within the outer shape of the second contact in a plan view.

  In the input device configured as described above, both the outer shape of the first electrode portion and the outer shape of the second electrode portion are arranged so as to fit within the outer shape of the second contact connected to the ground of the electronic device in plan view. Therefore, it can shield between the electrode parts of two electrostatic sensors. As a result, unnecessary noise can be reduced and malfunction can be prevented. Further, since the second contact of the membrane switch is used as a shield layer between the two electrostatic sensors, there is no increase in cost for preventing malfunction.

  The input device of the present invention includes an electrostatic sensor on each of one surface side and the other surface side of the membrane switch, and the two contact points of the membrane switch and the electrode portions of the two electrostatic sensors may be arranged to overlap each other. it can. As a result, the membrane switch and the two electrostatic sensors can be simultaneously turned on by the pressing operation from the outer surfaces of the two electrostatic sensors. By using this configuration, it is possible to prevent input except when the membrane switch and the two electrostatic sensors are simultaneously turned on, and as a result, malfunction can be prevented.

It is a perspective view which shows the example of application of the input device which concerns on 1st Embodiment of this invention. It is an application expansion perspective view of the input device concerning a 1st embodiment. It is an expanded view of the membrane switch used for an input device. It is an expanded view of the 1st electrostatic sensor and 2nd electrostatic sensor which are used for an input device. It is sectional drawing of an input device. It is sectional drawing of an input device. It is sectional drawing of an input device, and sectional drawing of the modification. It is a perspective view which shows the example of application of the input device which concerns on 2nd Embodiment of this invention. It is an expanded view of the membrane switch used for an input device. It is an expanded view of the 1st electrostatic sensor and 2nd electrostatic sensor which are used for an input device. It is sectional drawing of the input device which concerns on 2nd Embodiment. It is an expanded view at the time of abbreviate | omitting the resist of the membrane switch used for the modification of the input device which concerns on 2nd Embodiment. It is an expanded view in the case with the resist of the membrane switch used for the modification of the input device which concerns on 2nd Embodiment. It is sectional drawing of the modification of the input device which concerns on 2nd Embodiment. It is a perspective view which shows the application example of the input device which concerns on a prior art example.

[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. In this specification, unless otherwise specified, the X1 side of each drawing is described as the right side, the X2 side as the left side, the Y1 side as the back side, the Y2 side as the near side, the Z1 side as the upper side, and the Z2 side as the lower side. To do.

  First, an application example of the input device 100 according to the first embodiment will be described with reference to FIGS. 1 and 2.

  FIG. 1 is a perspective view showing a controller 50 for a neck strap 80, which is an application example of the input device 100 according to the first embodiment of the present invention, and FIG.

  As shown in FIG. 1, a belt-like neck strap 80 suspended from a person's neck is gathered by a connecting portion 82 and connected to an electronic device 90 from the connecting portion 82 via a connection cable 85. The electronic device 90 is a portable electronic device such as a portable audio device that can be taken out and used outdoors. The controller 50 is attached to a position in the middle of the neck strap 80, and an operation result by the controller 50 is configured to be transmitted to the electronic device 90 via the connection cable 85. A control unit 90a is built in the electronic device 90, detects the switching operation of the input device 100 in the controller 50, and performs subsequent control.

  As shown in FIG. 2, the input device 100 is built in the controller 50, and a case 45 is attached so as to cover the input device 100. A connecting portion 54 is provided on the back side and the near side of the controller 50, and a connector (not shown) connected to the connecting cable 85 shown in FIG. 1 is attached in the connecting portion 54. .

  A first operation unit 51 and a second operation unit 52 are provided below and above the controller 50, respectively. The first operation unit 51 includes three operation buttons 51a, 51b, and 51c, and the second operation unit 52 includes three operation buttons 52a, 52b, and 52c. The first operation unit 51 and the second operation unit 52 constitute a switch 53. Specifically, the operation button 51a and the operation button 52a constitute a first switch 53a, the operation button 51b and the operation button 52b constitute a second switch 53b, and the operation button 51c and the operation button 52c constitute a third switch 53c. Is configured.

  Here, when the operation button 51a and the operation button 52a are simultaneously pressed, the first switch 53a is turned on. When the operation button 51b and the operation button 52b are simultaneously pressed, the second switch 53b is turned on and the operation button 51c is turned on. And the operation button 52c are simultaneously pressed, the third switch 53c is turned on. In other words, the first switch 53a is not turned on only by pressing one of the operation buttons 51a or 52a. The same applies to the second switch 53b and the third switch 53c.

  In the controller 50, when each of the first switch 53a, the second switch 53b, and the third switch 53c is operated independently, the power can be turned on / off, the volume can be increased, and the volume can be decreased. It is configured. Further, various operations such as fast-forwarding and rewinding can be performed by operating two or three of the first switch 53a, the second switch 53b, and the third switch 53c in combination.

  Next, the structure of the contacts of the membrane switch 3 used in the input device 100 according to the first embodiment, the structure of the electrodes of each of the first electrostatic sensor 1 and the second electrostatic sensor 2, and the configuration of the input device 100 And the operation | movement is demonstrated.

  FIG. 3 is a development view of the membrane switch 3 used in the input device 100, and FIG. 4 is a development view of the first electrostatic sensor 1 and the second electrostatic sensor 2 used in the input device 100. 5 is a cross-sectional view of the input device 100 viewed from the front side along the line AA shown in FIG. 2, and FIG. 6 is a line BB shown in FIG. 5 is a cross-sectional view of the input device 100 as viewed from the right side to the left side.

  As shown in FIG. 5, the input device 100 includes a first electrostatic sensor 1, a second electrostatic sensor 2, and a membrane switch 3, and FIG. 3, FIG. 4 and FIG. It can be electrically connected to the external electronic device 90 shown in FIG. 1 via the wiring pattern 14 on the sheet 18 or the substrate 13 shown. The first electrostatic sensor 1 and the second electrostatic sensor 2 are formed on the same base material 13, and the membrane switch 3 is formed on a sheet 18 that is a separate member from the base material 13.

  As shown in FIG. 3, the membrane switch 3 is configured on a sheet 18 that is a thermoplastic synthetic resin such as PET (Polyethylene Terephthalate). The sheet 18 includes a first sheet 18a and a second sheet 18b having a substantially rectangular shape, each of which is connected to a part thereof. The first contact 16 of the membrane switch 3 is formed by a conductor on the first sheet 18a, and the second contact 17 is formed by a conductor on the second sheet 18b.

  The first contact 16 has a substantially rectangular shape, and includes a first contact 16a, a first contact 16b, and a first contact 16c that are separated from each other. The first contact 16a, the first contact 16b, and the first contact 16c are respectively wired to the connector connection pattern 14a by the wiring pattern 14, and the connector connection pattern 14a is connected to the back side of the controller 50 shown in FIG. It is attached to a connector (not shown) within the section 54.

  Each of the second contacts 17 has a substantially rectangular shape and includes a second contact 17a, a second contact 17b, and a second contact 17c connected to each other. The second contact 17a, the second contact 17b, and the second contact 17c are wired to the connector connection pattern 14a by one wiring pattern 14.

  As shown in FIG. 3, a resist 15 is provided on the surface of the sheet 18 of the membrane switch 3 on which the first contact 16 and the second contact 17 are provided. The resist 15 is provided so that the first contact 16a, the first contact 16b, the first contact 16c, the second contact 17a, the second contact 17b, the second contact 17c, and the connector connection pattern 14a are exposed. In the input device 100, the membrane switch 3 is used by being folded at a connection portion between the first sheet 18a and the second sheet 18b.

  As shown in FIG. 4, the 1st electrostatic sensor 1 and the 2nd electrostatic sensor 2 are comprised on the base material 13 which is thermoplastic synthetic resins, such as PET. The base material 13 is comprised by the substantially rectangular-shaped 1st base material 13a and the 2nd base material 13b to which each one part was connected. The first electrode portion 11 of the first electrostatic sensor 1 is formed on the first base material 13a, and the second electrode portion 12 of the second electrostatic sensor 2 is formed on the second base material 13b with a conductor.

  The first electrode part 11 is composed of a first electrode part 11a, a first electrode part 11b, and a first electrode part 11c that are separated from each other and have a substantially rectangular shape. The first electrode portion 11a, the first electrode portion 11b, and the first electrode portion 11c are respectively wired to the connector connection pattern 14a by the wiring pattern 14, and the connector connection pattern 14a is different from the case of the membrane switch 3 described above. Connected to a connector (not shown). In this case, the connector is attached in the connection portion 54 on the near side shown in FIG.

  The second electrode portion 12 is composed of a second electrode portion 12a, a second electrode portion 12b, and a second electrode portion 12c that are separated from each other and each have a substantially rectangular shape. The second electrode portion 12a, the second electrode portion 12b, and the second electrode portion 12c are respectively wired to the connector connection pattern 14a by the wiring pattern 14, and the connector connection pattern 14a is the same as that of the first electrode portion 11 described above. Connected to a connector (not shown). The first electrode unit 11 and the second electrode unit 12 have a stray capacitance between the first electrode unit 11 and the second electrode unit 12 and the human body that is considered to be connected to the ground when the human body is close to the first electrostatic sensor 1. And the 2nd electrostatic sensor 2 can be comprised.

  As shown in FIG. 4, a resist 15 is provided on the surface of the base 13 of the first electrostatic sensor 1 and the second electrostatic sensor 2 where the first electrode portion 11 and the second electrode portion 12 are provided. ing. The resist 15 is provided over almost the whole so that only the connector connection pattern 14a is exposed. Further, the first electrode portion 11a, the first electrode portion 11b, the first electrode portion 11c, the second electrode portion 12a, the second electrode portion 12b, and the second electrode portion 12c are substantially elliptical at the substantially central positions. Each pressing member 41 is attached. The function of the pressing member 41 will be described later.

  Next, the configuration and operation of the input device 100 will be described. As shown in FIG. 5, the first electrostatic sensor 1 and the second electrostatic sensor 2 are folded at the connection portion between the first base material 13a and the second base material 13b, and the above-described folded membrane switch 3 is moved. The input device 100 is configured by wrapping.

  The membrane switch 3 includes a first sheet 18a provided with a first contact 16 on one side (Z1 side) and a second sheet 18b provided with a second contact 17 on one side (Z2 side). Is folded so that the first contact 16 and the second contact 17 face each other with a gap therebetween. Moreover, the 1st electrostatic sensor 1 and the 2nd electrostatic sensor 2 are arrange | positioned on the outer side (Z2 side and Z1 side) of the membrane switch 3, respectively. The 1st electrostatic sensor 1 has the 1st substrate 13a, the 1st electrode part 11 is formed in one side (surface by the side of Z1) of the 1st substrate 13a, and the 2nd electrostatic sensor 2 Has a second substrate 13b, and the second electrode portion 12 is formed on one surface (Z2 side surface) of the second substrate 13b. The first electrode portion 11 faces the other surface (Z2 side surface) of the first sheet 18a of the membrane switch 3, and the second electrode portion 12 faces the other surface (Z1 side surface) of the second sheet 18b. As described above, the first electrostatic sensor 1 and the second electrostatic sensor 2 are disposed on the membrane switch 3.

  By configuring the first electrostatic sensor 1, the second electrostatic sensor 2, and the membrane switch 3 as described above, the first contact point 16, the second contact point 17, the first electrode unit 11, the second electrode unit 12, Are arranged so that at least a part of each of them overlaps in plan view.

  The membrane switch 3 is configured such that a switching operation is performed when the first contact 16 and the second contact 17 formed on the sheet 18 are brought into contact with each other by the pressing force from the outside. The result of this switching operation is transmitted to the control unit 90a in the electronic device 90 described above via the wiring pattern 14 and the connection cable 85 shown in FIG. 1, and the switch is turned on.

  As described above, each of the first electrostatic sensor 1 and the second electrostatic sensor 2 has a stray capacitance between the first electrode portion 11 and the second electrode portion 12 and the ground, and is a self-capacitance sensor. It is configured. In general, in the case of a self-capacitance type sensor, the stray capacitance is affected by a parasitic capacitance between conductors around the electrode portion. Since the human body is also a conductor, the value of the stray capacitance increases when a finger (human body) approaches the electrode portion.

  Also in the input device 100, the stray capacitance increases when a human finger contacts or approaches the first electrode portion 11 or the second electrode portion 12, and the increase in stray capacitance is caused by the increase in the stray capacitance in the electronic device 90 described above. The data is transmitted to the control unit 90a and measured and detected by the control unit 90a. In the control unit 90a, it is determined that the first electrostatic sensor is turned on when an increase in the stray capacitance of the first electrode unit is detected, and the second electrostatic sensor is detected when an increase in the stray capacitance of the second electrode unit is detected. It is determined that it is turned on.

  The self-capacitance type sensor is characterized in that it does not require additional energy and is difficult to generate noise. There are other mutual capacitance type sensors as the electrostatic sensor, but in the present invention, a self-capacitance type sensor is adopted because of its simple structure. It is also possible to employ a mutual capacitance type sensor as the electrostatic sensor of the present invention. In addition, since the technique regarding the mutual capacitance type sensor is a generally known technique, the description thereof is omitted.

  In the input device 100, only when the first electrostatic sensor 1 and the second electrostatic sensor 2 are turned on and at the same time the membrane switch 3 is turned on, the first switch 53a and the second switch 53b shown in FIG. Alternatively, the controller 90a determines that the third switch 53c is turned on. In other words, if any one of the first electrostatic sensor 1, the second electrostatic sensor 2, and the membrane switch 3 is not turned on, the first switch 53a and the second switch 53b shown in FIG. Alternatively, the third switch 53c is not turned on.

  As shown in FIG. 5, the first operation unit 51 described above is arranged on the other surface (the surface on the Z2 side) of the first base material 13a, and the other surface (the Z1 side surface) of the second base material 13b. The second operation unit 52 described above is disposed on the surface) side. Here, the case 45 described above is omitted. As shown in FIG. 6, the operation button 51a of the first operation unit 51 and the operation button 52a of the second operation unit 52 include a first contact 16a, a second contact 17a, a first electrode unit 11a, and a second electrode unit 12a. It is comprised so that it may be inserted | pinched. The same applies to the operation button 51b and the operation button 52b, and the operation button 51c and the operation button 52c.

  As shown in FIGS. 5 and 6, in the input device 100, a part of the space between the first electrode portion 11 of the first electrostatic sensor 1 and the first contact 16 of the membrane switch 3, and the second electrostatic Press members 41 are respectively formed in a part of the space between the second electrode portion 12 of the sensor 2 and the second contact 17 of the membrane switch 3. At the same time, an elastic layer 43 is formed in a region where the pressing member 41 is not provided in the space between the first electrode portion 11 and the first sheet 18a and between the second electrode portion 12 and the second sheet 18b.

  The pressing member 41 can more reliably perform a pressing operation for contacting the first contact 16 and the second contact 17 of the membrane switch 3 when the first operation unit 51 and the second operation unit 52 are operated. It is provided for this purpose. The elastic layer 43 is provided to ensure a certain distance between the first operation unit 51 and the second operation unit 52 for pressing. By having this distance, malfunctions can be reduced.

  As shown in FIGS. 5 and 6, in the input device 100, the area where the first contact 16 of one surface (the surface on the Z1 side) of the first sheet 18 a of the membrane switch 3 is not provided, and the second sheet A resist 15 is formed in a region where the second contact 17 is not provided on one surface (the surface on the Z2 side) of 18b. The resist 15 forms a predetermined gap between the first contact 16 and the second contact 17 in this region. When the first operation unit 51 and the second operation unit 52 are not operated due to the presence of the resist 15, the first contact 16 and the second contact 17 do not come into contact with each other, and the first contact 16 and the second contact 17 are not in contact with each other. There is no need for a separate member for forming a gap between the two.

  As shown in FIGS. 5 and 6, the first electrode portion is also formed on one surface (Z1 side surface) of the first base material 13a and one surface (Z2 side surface) of the second base material 13b. A resist 15 is formed so as to cover 11 or the second electrode portion 12. By forming the resist 15 in this region, the first electrode portion 11 and the pressing member 41 and the second electrode portion 12 and the pressing member 41 are not in direct contact with each other. When the part 52 is operated, the first electrode part 11 and the second electrode part are not easily damaged.

  Next, the structure of the input device 100 in a state where the case 45 shown in FIG. 7A is a cross-sectional view of the input device 100, and FIG. 7B is a cross-sectional view of the input device 110. 7A and 7B are cross-sectional views when the left side is viewed from the right side of the input device 100 or the input device 110 along the line BB shown in FIG.

  In the description with reference to FIGS. 3 to 6, the case 45 is omitted, but actually, as illustrated in FIG. 7A, the input device 100 includes the case 45. It is attached so as to surround 100. The case 45 is made of a thin synthetic resin such as PET, and forms the outer shape of the controller 50 described with reference to FIG. The first operation unit 51 and the second operation unit 52 of the controller 50 are operated via the case 45.

  In the input device 110 shown in FIG. 7B, a molding material is used as the material of the case 46 that covers the input device 110. The molding material used in the case 46 is a synthetic resin that is thicker than the PET used in the case 45 of the input device 100. Therefore, a larger pressing force than that of the input device 100 is required. Therefore, a constricted portion 46 a is provided around the portion corresponding to the first operation portion 51 and the second operation portion 52 inside the case 46. In addition, as the thickness of the case 46 increases, the thickness of the pressing member 42 attached in the input device 110 is set to be thicker than the thickness of the pressing member 41 attached in the input device 100. ing. Other configurations are the same as those of the input device 100.

  As described above, the input device 100 and the input device 110 include the first electrostatic sensor 1 and the second electrostatic sensor 2 on one surface side and the other surface side of the membrane switch 3, respectively. One contact point, the electrode part of the first electrostatic sensor 1 and the electrode part of the second electrostatic sensor 2 can be arranged to overlap each other. Accordingly, the membrane switch, the first electrostatic sensor 1 and the second electrostatic sensor 2 can be simultaneously turned on by the pressing operation from the outer surfaces of the first electrostatic sensor 1 and the second electrostatic sensor 2. it can. By using this configuration, it is possible to prevent input except when the membrane switch and the two electrostatic sensors are simultaneously turned on, and as a result, malfunction can be prevented.

  Further, the pressing operation can be smoothly performed by the pressing member 41 or the pressing member 42, and the distance between the two electrostatic sensors can be maintained by the elastic layer 43, so that the malfunction can be further reduced.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to the drawings.

  First, an application example of the input device 200 according to the second embodiment will be described with reference to FIG.

  FIG. 8 is a perspective view showing a strip-shaped controller 70 which is an application example of the input device 200 according to the second embodiment of the present invention.

  The electronic device 90 can be operated by a strip-shaped controller 70 shown in FIG. The electronic device 90 is a portable electronic device such as a portable audio device that can be taken out and used outdoors. A connection cable 85 is connected between the connection portion 74 of the controller 70 and the electronic device 90, and an operation result by the controller 70 is transmitted to the electronic device 90 via the connection cable 85. . A control unit 90a is built in the electronic device 90, detects the switching operation of the input device 200 in the controller 70, and performs subsequent control.

  As shown in FIG. 8, the input device 200 is built in the controller 70, and a case 75 is attached so as to cover the input device 200. A connection portion 74 is provided on the back side of the controller 70, and a connector (not shown) connected to the connection cable 85 is connected to the input device 200 in the connection portion 74.

  A first operation unit 71 and a second operation unit 72 are provided below and above the controller 70, respectively. The first operation unit 71 includes three operation buttons 71a, 71b, and 71c, and the second operation unit 72 includes three operation buttons 72a, 72b, and 72c. The first operation unit 71 and the second operation unit 72 constitute a switch 73. Specifically, the operation button 71a and the operation button 72a constitute a first switch 73a, the operation button 71b and the operation button 72b constitute a second switch 73b, and the operation button 71c and the operation button 72c constitute a third switch 73c. Is configured.

  Here, the first switch 73a is turned on only when the operation button 71a and the operation button 72a are pressed simultaneously, and the second switch 73b is turned on only when the operation button 71b and the operation button 72b are pressed simultaneously. The third switch 73c is turned on only when the button 71c and the operation button 72c are pressed simultaneously. In other words, the first switch 73a is not turned on only by pressing one of the operation buttons 71a or 72a. The same applies to the second switch 73b and the third switch 73c.

  In the controller 70, when each of the first switch 73a, the second switch 73b, and the third switch 73c is operated independently, the power can be turned on / off, the volume can be increased, and the volume can be decreased. It is configured. Further, by operating two or three of the first switch 73a, the second switch 73b, and the third switch 73c in combination, various operations such as fast forward and rewind can be performed.

  Next, the structure of the contacts of the membrane switch 8 used in the input device 200 according to the second embodiment, the structure of the electrode portions of the first electrostatic sensor 6 and the second electrostatic sensor 7, and the configuration of the input device 200 And its operation will be described with reference to FIGS.

  FIG. 9 is a development view of the membrane switch 8 used in the input device 200, and FIG. 10 is a development view of the first electrostatic sensor 6 and the second electrostatic sensor 7 used in the input device 200. FIG. 11 is a cross-sectional view of the input device 200 according to the second embodiment, and FIG. 11 (a) is a front view of the input device 200 along the line CC shown in FIG. FIG. 11B is a cross-sectional view when the left side is viewed from the right side of the input device 200 along the line DD shown in FIG. 8.

  As shown in FIG. 11A, the input device 200 includes a first electrostatic sensor 6, a second electrostatic sensor 7, and a membrane switch 8, and FIG. The electronic device 90 shown in FIG. 8 is electrically connected via the wiring pattern 24 on the sheet 28 shown. The membrane switch 8 is formed on one surface of the sheet 28, and the first electrostatic sensor 6 and the second electrostatic sensor 7 are formed on the other surface of the sheet 28. That is, the membrane switch 8 and the first electrostatic sensor 6 and the second electrostatic sensor 7 are respectively formed on the front surface and the back surface of the same sheet 28.

  The sheet 28 used for the membrane switch 8, the first electrostatic sensor 6, and the second electrostatic sensor 7 is formed of a thin thermoplastic synthetic resin such as PET. As shown in FIG. 9, the sheet 28 is composed of a first sheet 28a and a second sheet 28b having a substantially rectangular shape, each of which is partially connected, and the first contact 26 of the membrane switch 8 is a first contact 26. The second contact 27 is formed on the sheet 28a by a conductor on the second sheet 28b.

  The first contact 26 includes a first contact 26a, a first contact 26b, and a first contact 26c that are separated from each other and have a substantially rectangular shape. The first contact 26a, the first contact 26b, and the first contact 26c are wired to the connector connection pattern 24a by the wiring pattern 24, respectively.

  The second contact 27 is composed of a second contact 27a, a second contact 27b, and a second contact 27c that are connected to each other and have a substantially rectangular shape. The second contact 27a, the second contact 27b, and the second contact 27c are wired to the connector connection pattern 24a by a single wiring pattern 24.

  As shown in FIG. 9, a resist 25 is provided on the surface of the sheet 28 on which the first contact 26 and the second contact 27 are provided. The resist 25 is formed on the surface of the sheet 28 so that the first contact 26a, the first contact 26b, the first contact 26c, the second contact 27a, the second contact 27b, the second contact 27c, and the connector connection pattern 24a are exposed. Is provided.

  As shown in FIG. 10, the first electrostatic sensor 6 and the second electrostatic sensor 7 are formed on the back surface of the sheet 28 on which the membrane switch 8 is configured. The first electrode portion 21 of the first electrostatic sensor 6 is formed on the back surface 28c of the first sheet 28a, which is one of the sheets 28. The second electrode portion 22 of the second electrostatic sensor 7 is formed on the back surface 28d of the second sheet 28b, which is the other sheet of the sheet 28.

  The first electrode portion 21 is composed of a first electrode portion 21a, a first electrode portion 21b, and a first electrode portion 21c that are separated from each other and have a substantially rectangular shape. The 1st electrode part 21a, the 1st electrode part 21b, and the 1st electrode part 21c are wired to the through hole 24b provided in sheet 28 by the plurality of wiring patterns 24 on back 28c of the 1st sheet 28a, respectively. And it connects with the wiring pattern 24 of the surface of the sheet | seat 28 shown in FIG. 9 by the through hole 24b.

  The second electrode portion 22 is composed of a second electrode portion 22a, a second electrode portion 22b, and a second electrode portion 22c that are separated from each other and have a substantially rectangular shape. The second electrode portion 22a, the second electrode portion 22b, and the second electrode portion 22c are wired to a through hole 24b provided in the sheet 28 by a plurality of wiring patterns 24 on the back surface 28d of the second sheet 28b. And it connects with the wiring pattern 24 of the surface of the sheet | seat 28 shown in FIG. 9 by the through hole 24b.

  As shown in FIG. 10, the resist 25 is also applied to the back surface 28c and the back surface 28d of the sheet 28 on which the first electrode portion 21 of the first electrostatic sensor 6 and the second electrode portion 22 of the second electrostatic sensor 7 are provided. Are provided almost entirely. The sheet 28 is used by being folded at a connection portion between the first sheet 28a and the second sheet 28b.

  Next, the configuration and operation of the input device 200 will be described. As shown in FIG. 11A, the membrane switch 8 includes a first sheet 28a in which the first contact 26 is provided on one surface (Z1 side surface) and a second surface on one surface (Z2 side surface). The second sheet 28b provided with the contact point 27 is folded so that the first contact point 26 and the second contact point 27 face each other with a gap therebetween.

  The first electrostatic sensor 6 and the second electrostatic sensor 7 formed on the back surface of the same sheet 28 on which the membrane switch 8 is formed are disposed on the outer side (Z2 side and Z1 side) of the membrane switch 8, respectively. Will be. The first electrostatic sensor 6 has a first electrode portion 21 formed on the other surface (Z2 side surface) of the first sheet 28a, and the second electrostatic sensor 7 has the other electrode of the second sheet 28b. The second electrode portion 22 is formed on the surface (the surface on the Z2 side).

  By configuring the first electrostatic sensor 6, the second electrostatic sensor 7, and the membrane switch 8 as described above, the first contact 26, the second contact 27, the first electrode unit 21, the second electrode unit 22, Are arranged so that at least a part of each of them overlaps in plan view.

  The operation principles of the membrane switch 8, the first electrostatic sensor 6, and the second electrostatic sensor 7 are the same as the operation principles of the membrane switch 3, the first electrostatic sensor 1, and the second electrostatic sensor 2 described above. Since there is, explanation is omitted.

  Also in the input device 200, only when the first electrostatic sensor 6 and the second electrostatic sensor 7 are turned on and at the same time the membrane switch 8 is turned on, the first switch 73a and the second switch shown in FIG. When the controller 73b or the third switch 73c is turned on, the controller 90a determines. In other words, when any one of the first electrostatic sensor 6, the second electrostatic sensor 7, and the membrane switch 8 is not turned on, the first switch 73a and the second switch 73b shown in FIG. Alternatively, the third switch 73c is not turned on.

  As shown in FIG. 11A, the first operation unit 71 described above is disposed on the other surface (Z2 side surface) side of the first sheet 28a via the resist 25, and the other side of the second sheet 28b. The above-described second operation unit 72 is disposed on the surface (Z1 side surface) via the resist 25. Here, the case 75 described above is omitted. As shown in FIG. 11B, the operation button 71a of the first operation unit 71 and the operation button 72a of the second operation unit 72 include a first contact 26a, a second contact 27a, a first electrode unit 21a, and a second operation. It is comprised so that electrode part 22a may be inserted. The same applies to the operation button 71b of the first operation unit 71 and the operation button 72b of the second operation unit 72, and the operation button 71c of the first operation unit 71 and the operation button 72c of the second operation unit 72.

  As shown in FIGS. 11A and 11B, the input device 200 is not attached with members corresponding to the pressing member 41 and the elastic layer 43 attached with the input device 100. In the input device 200, by not attaching members corresponding to the pressing member 41 and the elastic layer 43, the thickness of the input device 200 itself can be reduced, and the operability and fashionability of the controller 70 using the input device 200 can be reduced. It is possible to make an excellent controller.

  The region where the first contact 26 is not provided on one surface (Z1 side surface) of the first sheet 28a of the membrane switch 8 and the second contact 27 on one surface (Z2 side surface) of the second sheet 28b. A resist 25 is formed in a region where no is provided. In this region, the resist 25 forms a gap having a predetermined separation distance between the first contact 26 and the second contact 27. When the first operation unit 71 and the second operation unit 72 are not operated due to the presence of the resist 25, the first contact 26 and the second contact 27 do not come into contact with each other.

  As shown in FIG. 11A and FIG. 11B, the other surface of the first sheet 28a (the surface on the Z2 side) and the other surface of the second sheet 28b (the surface on the Z1 side) A resist 25 is formed so as to cover the first electrode portion 21 or the second electrode portion 22. By forming the resist 25 in this region, when the first operation unit 71 and the second operation unit 72 are operated via the case 75 shown in FIG. 8, the first electrode unit 21 and the second electrode unit 22 are operated. Is less susceptible to damage.

  As described above, in the input device 200, the membrane switch 8, the first electrostatic sensor 6, and the second electrostatic sensor 7 are disposed on the front side and the back side of the single sheet 28. Therefore, the input device 200 itself Can be made thinner. Therefore, it is possible to provide an input device that is excellent in operability and fashionability.

  Next, the configuration of an input device 300, which is a modification of the input device 200 according to the second embodiment, will be described with reference to FIGS. Note that the difference between the input device 300 and the input device 200 is only the structure of the second contact point 37 in the membrane switch 9 used in the input device 300, and therefore description of other structures and configurations may be omitted. is there. For the components other than the membrane switch 9 and the second contact 37, the reference numerals given to the input device 200 are used.

  12 is a development view of the membrane switch 9 used in the input device 300 when the resist 25 is omitted, and FIG. 13 is a development view of the membrane switch 9 when the resist 25 is present. FIG. 14 is a cross-sectional view of the input device 300. 14A is a cross-sectional view of the input device 300 viewed from the front side along the line CC shown in FIG. 8, and FIG. 14B is a cross-sectional view of FIG. It is sectional drawing at the time of seeing the left side from the right side of the input device 300 along the DD line shown in FIG.

  As shown in FIG. 12, the sheet 28 used in the membrane switch 9 is composed of a first sheet 28a and a second sheet 28b each having a substantially rectangular shape to which a part of each sheet 28 is connected. The first contact 26 of the membrane switch 8 is formed by a conductor on the first sheet 28a, and the second contact 37 is formed by a conductor on the second sheet 28b.

  As shown in FIG. 12, the second contact 37 is provided in all regions of the second sheet 28 b except the wiring pattern 24, and is wired to the connector connection pattern 24 a by one wiring pattern 24. Yes. Further, the connector connection pattern 24a connected to the second contact point 37 is connected to the ground of the electronic device 90 via a connector (not shown) and the connection cable 85 shown in FIG.

  In FIG. 12, the resist 25 is omitted and the second contact point 37 is described, but actually, the resist 25 is provided as shown in FIG. The resist 25 is provided so that the first contact 26a, the first contact 26b, and the first contact 26c are exposed, and individually with respect to the second contact 37 provided over almost the entire area of the second sheet 28b. The second contact point 37a, the second contact point 37b, and the second contact point 37c, which are the respective contact points, are provided so as to be exposed.

  Next, the configuration and operation of the input device 300 will be described. As shown in FIG. 14A, in the membrane switch 9, the first sheet 28a having the first contact 26 provided on one surface (the surface on the Z1 side) and the second surface on the one surface (the surface on the Z2 side). The second sheet 28b provided with the contact point 37 is folded so that the first contact point 26 and the second contact point 37 face each other with a gap therebetween.

  The first electrostatic sensor 6 and the second electrostatic sensor 7 are disposed on the outer side (Z2 side and Z1 side) of the membrane switch 9, respectively. As the first electrostatic sensor 6, the first electrode portion 21 is formed on the other surface (the surface on the Z2 side) of the first sheet 28a, and as the second electrostatic sensor 7, the other surface of the second sheet 28b. The second electrode portion 22 is formed on the (Z2 side surface).

  Generally, when two electrostatic sensors exist at a close distance and one of the electrostatic sensors is to be operated, the electrostatic capacity of the finger touching one of the electrostatic sensors wraps around from the surroundings and the other The electrostatic capacitance value of the electrostatic sensor may be changed. For this reason, unnecessary noise is generated, and malfunction may occur in the other electrostatic sensor. In order to prevent such malfunction of the electrostatic sensor, it is preferable to electromagnetically shield between one electrostatic sensor and the other electrostatic sensor. Therefore, in the input device 300, a shield layer is provided between the first electrostatic sensor 6 and the second electrostatic sensor 7.

  As described above and as shown in FIGS. 14A and 14B, the second contact point 37 is provided over almost the entire region of the second sheet 28b. Accordingly, the first electrode portion 21 and the second electrode portion 22 have both the outer shape of the first electrode portion 21 and the outer shape of the second electrode portion 22 as shown in FIG. It arrange | positions so that it may fit in planar view in an external shape. As described above, the second contact point 37 is connected to the ground of the external electronic device 90 shown in FIG. Therefore, the first electrode part 21 and the second electrode part 22 can be shielded by the second contact point 37. In addition, since the second contact point 37 of the membrane switch 8 can be used as a shield layer between the first electrostatic sensor 6 and the second electrostatic sensor 7, the cost does not increase.

  As described above, in the input device 300, both the outer shape of the first electrode portion 21 and the outer shape of the second electrode portion 22 are accommodated in the outer shape of the second contact 37 connected to the ground of the electronic device 90 in a plan view. Since it arrange | positions in this way, between the 1st electrode part 21 and the 2nd electrode part 22 can be shielded. As a result, unnecessary noise can be reduced and malfunction can be prevented. Further, since the second contact point 37 of the membrane switch 8 is used as a shield layer between the first electrostatic sensor 6 and the second electrostatic sensor 7, there is no increase in cost for preventing malfunction.

  As described above, the input device of the present invention includes the electrostatic sensor on each of the one surface side and the other surface side of the membrane switch, and includes the two contacts of the membrane switch and the electrode portions of the two electrostatic sensors. They can be placed one on top of the other. As a result, the membrane switch and the two electrostatic sensors can be simultaneously turned on by the pressing operation from the outer surfaces of the two electrostatic sensors. By using this configuration, it is possible to prevent input except when the membrane switch and the two electrostatic sensors are simultaneously turned on, and as a result, malfunction can be prevented.

  As described above, the input device 100 to the input device 300 according to the embodiments of the present invention have been described. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. Is possible. For example, the input device 300 is configured based on the input device 200, but may be configured based on the input device 100.

DESCRIPTION OF SYMBOLS 1 1st electrostatic sensor 2 2nd electrostatic sensor 3 Membrane switch 6 1st electrostatic sensor 7 2nd electrostatic sensor 8 Membrane switch 9 Membrane switch 11 1st electrode part 12 2nd electrode part 13 Base material 13a 1st group Material 13b Second substrate 16 First contact 17 Second contact 18 Sheet 18a First sheet 18b Second sheet 21 First electrode portion 22 Second electrode portion 26 First contact 27 Second contact 28 Sheet 28a First sheet 28b First sheet 28b 2 sheet 37 2nd contact point 41 pressing member 42 pressing member 43 elastic layer 90 electronic device 100 input device 110 input device 200 input device 300 input device

Claims (4)

While having the 1st sheet | seat with which the 1st contact was provided in one side, and the 2nd sheet | seat with which the 2nd contact was provided in one side, the said 1st contact and the said 2nd contact have a gap mutually A membrane switch arranged to face each other,
A first electrostatic sensor having a first substrate and having a first electrode portion formed on one surface of the first substrate;
A second electrostatic sensor having a second base material and having a second electrode portion formed on one surface of the second base material; and an input device connectable to an external electronic device. ,
In the first electrostatic sensor and the second electrostatic sensor, the first electrode portion faces the other surface of the first sheet, and the second electrode portion faces the other surface of the second sheet. Are arranged to
The input device, wherein the first contact, the second contact, the first electrode portion, and the second electrode portion are arranged so that at least a part of each of them overlaps each other in a plan view. A pressing member is formed on a part between the first electrode part and the first contact and a part between the second electrode part and the second contact, respectively.
An elastic layer is formed between the first electrode portion and the first sheet and between the second electrode portion and the second sheet in a region where the pressing member is not present. Item 2. The input device according to Item 1. While having the 1st sheet | seat with which the 1st contact was provided in one side, and the 2nd sheet | seat with which the 2nd contact was provided in one side, the said 1st contact and the said 2nd contact have a gap mutually A membrane switch arranged to face each other,
A first electrostatic sensor having a first electrode portion formed on the other surface of the first sheet;
A second electrostatic sensor having a second electrode portion formed on the other surface of the second sheet, and an input device connectable to an external electronic device,
The input device, wherein the first contact, the second contact, the first electrode portion, and the second electrode portion are arranged so that at least a part of each of them overlaps each other in a plan view. The second contact is connected to the ground of the electronic device;
The first electrode portion and the second electrode portion are arranged such that both the outer shape of the first electrode portion and the outer shape of the second electrode portion are accommodated in the outer shape of the second contact in a plan view. The input device according to claim 1, wherein the input device is an input device.